Penne Alla Vodka - Macey's

Ingredients

• 1 lb penne pasta
• 2 tablespoons olive oil
• 1 small onion, finely chopped
• 2 cloves garlic, minced
• 1/4 teaspoon red pepper flakes (optional)
• 1 can (14 oz) crushed tomatoes
• 1/2 cup heavy cream
• 1/4 cup grated Parmesan cheese
• Salt and pepper to taste